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(No Model.) SSheets-Sheet 1.

R. GORSGADEN..

A *PPARATUS POR COLLECTING AND DRYING SBDIMENTARY MATTER (No Model.) 3 Sheets-Sheet 2. R. GORSCADEN.

APPARATUS FOB. COLLECTING AND DRYING SEDIMENTARY MATTER 0F SEWAGE.

(No Model.) 3 Sheets-Sheet 3. R. CORSCADEN. APPARATUS POR CO'LLEGTING AND DRYING SEDIMENTARY MATTER 0F SBWAGE.

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To @il rtf/"zom- .7'25 may; concern 3c it known that I. llonnirr- ConscAnnN, a citizen el" the YUn ited States7 residing at Irovidence, in the county of Providence and State of Rhode Island, have invented a new and nsel'ul improvement in Apparatus for Collecting and Drying Sedimentary Matter of Sewage7 ol" which thc following is a specilica tion.

My invention relates to improvements in apparatus for collecting aud drying sediment ary matter of sewage and freeing the sewers ot' gas and l'oul air; and it consists in certain improvements upon the apparatus for thcsame purpose for which [made application October el, 1883, No. 105158, constituting therewith an apparatus which I have denominated The National Sewage and Fertilizer System]7 which said improvementsarehereinaiter fully described, in connection with the accompanying drawings and claims.

In the drawings, Figure -l is a plan view, partly in section, illnstratine' a plant com4 prising certain ot' my said improvements. 2 is an elevation, one series oi' tanks and ils connections boing shown in vertical section. Fig. 3 is a plan view of' the devices l'or handling and tranisporiiug the material. Fig. d is a broken plan view showing the heatingpipe, the drying floor, the covcringfloor, and apparatus thereon. Fie. 5 is a detail view oi" a revolving screen for pu `poses to bc described. ti to ll are detail views of operating devices.

A represents a main sewer, c, 1L a being its tributaries. Near the place where the main sewer delivers its discharge to my appara-tus. I introduce into it a parL llel wall or walls, ai), dividing it into two or more `parallel passages. A gate, c, is provided in connection with this wall at cach end thereol'7 such that while one passage is closed the other may be open. Rubbish ol" all sorts finds its way into and through the sewers, and to remove suoli as cannot be reduced to a condition suitable for agricultural purposes l introduce into the abovenamed passages screens by which it may be arrested to be withdrawn from the sewer. I have shown in Figs. I and a form of such screen l, adapted to be revolved to both arrest and raise any clogging or intractable maming part of 'Letters Patent No.

SCADEN, OF IROVIDECE, RHODE ISLASD.

CGLL-ECTING AND DRYI'NG SEDiMNTAl-ll MATTER 0F EWAGE.

sus., ill-3, dated December 3, 1885.

Serial No. 1,253,250. (No model.)

terials, the saine when raised falling upon the trough b5, whence it is easily removed. One of such screens being arranged in each passage,it is apparent that one passage being lel't open tor the passage ol" sewage, the other, the gates being shifted to close it, can be l'reed from all such obnoxious matter, so that at least one passage can be always kept clear to turn the sewage through when the other or others become clogged. Between this device and the settling tanks or basins I may introduce into the sewer a meter, j", of any suitable known constructiomto properly gage and register the amount of sewage passing. I also arrange in the sewer near its entrance to the basins bars or projections transversely to the dow of the sewage, to agitato and mix thesame and render it of uniform consistencyv before entering the basins.

In my present arrangement of catch'basins or settling-tanks j they are sector-shaped and radially arranged about a common center and are built with walls inclining downward to the common center or lowest part, all as in my former application above referred to; but in my present device I distribute the sewage to them all from one7into which the sewer dclivers and through which the sewage passes to the lowest part of the line gl of the chimney G, whence it is distributed through the openings y"JX to the other tanks j. In these tanks the heavy and sedimentary matter in the sewage settles to the bottom, lying there in a semiliquid or slnfglge7 fo1'm.while the lighter liquid overflows into the circular drain k, which surrounds the .basins7 whence, ildesired, it may dow oli' by a discharge-sewer. I contemplate a further use of it, however. Where the flow ot' sewage is large and heavy, asingle settling and precipitation will not be sut'dcient. I accordingly conduct the over-dow from the lirst series of tanks to a second series by a duct, i, in which second series, constructed substantially like the iirst, the process is repeat-ed. A check-Valve, o, is arranged in the duct 7s to automatically check any backtlow from the second series of tanks to the first. The overflow from this second series will be comparatively clear and innocuous and will collect and pass orf by the circular drain m., surrounding the catch-basins; or7 it desired,

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the process may be still further repeated in yet another series of basins.

To further remove from the sediment or sludge its liquid, I have devised the following apparatus: From the bottom of a series of tanks I build a pier, which as it emerges fromthe tanks takes the form of a tall chimney, G. At a point a little below the level of the brim ofthe tanks the central flue, g2, of said chimney begins. At this level,also,the wall of the flue is pierced with the openingsjlx for the distribution of the sewage from the tank which receives it from the sewer to the others. Above these openings,and also alittle above the brim of the basins, I build a floor, E,entirely covering the basins. Upon this floor I arrange a circulating pipe or flue, k2. connecting at one end with a furnace, y2, and at the other with a smaller flue, h2, of the chimney. I have shown this ijue as a spiral one formed in thev wall ofthe chimney, though it may be differently disposed. Above the circulating-pipe I arrange another floor, F, with a rim about its margin to receive the sludge raised from the tanks. The object of this construction is to heat the floor F by the furnace and circulating-pipe for the purpose of evaporating the liquid from the sludge. The surplus heat, passing up the spiral iiue, heats the chimney, causing a strong upward draft in the central iiue, which draws off and upward all gases and effluvias rising from the basins or entering thereinto from the sewer. Above the heatingtloor a covering-floor, F, is arranged and entirely around the apparatus an inclosing-wall, F, connecting the last-named floor with the outer part ofthe circular drain, whereby a close heating-chamber is formed to evaporate the liquid from the sludge. Still another iiue, t2, maybe formed in or around the chimney, communicating with the heati iig-chamber by openings m'i, whereby the-steam and heated fumes arising in the heating or drying chamber may be drawn off, the same aiding still further to heat the chimney and intensify the draft up the central tlue. It will thus be seen that the apparatus so far is entirely inclosed, and that the currents ot' air entering the basins above the sewage and passing up the central flue must be drawn through the sewer, and to that extent will operate to draw the sewer-gases and effluvias from the gullies and inlets toward the discharge end of the sewer, and by arranging at the said inlets graduated valves or gratings mw, to control the admission of t-he air, this device may be made to effect a steady movement of the sewer-air down toward the discharge.

Around and below the margin of the heating-floor may be arranged a gutter or drain, n4, to catch any overflow from the drying-floor and conduct it again to the basins.

A chimney, furnace, pipe, and drying-floor may be built in connection with each series of basins, if found necessary, though I have shown but one drying apparatus for two series of basins.

I transfer the sludge from the basins to the drying-floor in the following manner: At the angular bot-tom of each basin a'channel is formed in the pier, and all of the said channels converge to and unite in a dischargepipe, o2, and the several discharge-pipes converge into a union, o3, with which also connects with the suction -pipe ofa pump, t, which discharges into apparatus to be described hereinafter.

In order to deodorizc the sewage, more conveniently handle the material, and utilize the clarified liquid, I have devised the following: The discharge from the circular overfiow-drain of the second series maybe from either of two outlets, f2 f3, adjacentito each other and fitted with a gate adapted to close one when the other is open. The discharge u leads to a union, a', where, by means of an automatic gate, u, operated by a float, the eiiluent may be directed along a drain, a3, to a reservoir, w, or by drain u" to a river or bay. If the final discharge is to be into tide-water, and high-water mark is above the level of the union u', it becomes necessary to provide reservoir w, into which to discharge the efiluent during the last of flood and first of ebb tide, the reservoir being provided with tide-valve n2, to prevent backiiow of tide-water into the reservoir, and to permit free discharge therefrom when tide-wateris below it. lVhen tide-water is below the level of the union a, the effluent may be discharged directly through u into the bay; but the float of the automatic valve v being so arranged as to be acted on by the rising and falling tide when the tide rises too high to permit discharge through u", the rise of the float causes the gate c to shift and close at and open the channel a3 to the reservoir. The automatic valve o may be of any approved construction.

I have shown in Fig. 7 a construction suitable to be employed, in which the channels a3 u* are opened or closed by a single horizontally-swinging gate, tt, operated by astem, ul, extending downward into a vertical channel or well, au, communicating with tide-water. The float u plays up and down by the action of the tide in the well, and actsupon a spiral formed in the stein a7 to rotate the stem suiiiciently to set the valve or gate u to close c3 and open yzrgor the converse, according to the position of the float.

'Ihe gate to open or close channels fgf3 may be similar to either' of those thus described or of any approved structure having the same operation, except that it is to be operated by hand. The gates c in the sewer may be similarly constructed. The purpose of channels fzf3 is to be able to discharge the drainage from drain m, either directly away, as above described, or to turn it into the flume of a turbine wheel o to furnish power for the operations to be next described. A gear, 19, on the turbine shaft meshes with a pinion, q, on the shaft r', carrying an eccentric, s, which works the pump t to raise the sludge from the basins.

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llccentrics .r :r ou the same shaft may operate crushers to pulverize chemicals, which may ne dissolved in the pug-mill g, operated by gearing from the same shaft, and discharged by a conduit, h, into the main sewer to deodorize the sewage. The gearing. of thc pugmill operates shaft n and pump mx to supply the pug-mill with liquid from drain m, also shafteto drivea mill, b2, to grind and pulverize the dried sludge, and a clutch-pulley, c?, which by a rope, di, operates a shovel or scraper, ci, to remove said dried sludge from the drying-floor.

For convenience in depositing the sludge upon the drying-iioor, I have devised the fol lowing: Under the discharge of the pump t is a rising and falling platform, p2, supported upon a lever, pix, whose counterba-lance outweighs the unloaded car, but is less than the weight of the car loaded. The grade of the track on this platform is slightly downward, so that when the platform sinks by the weight of the loaded car, and is engaged by a catch, rv", Fig. 8, to hold it down, it connects with a second rising' and falling platform, pi, next in advance of it, supported upon one end of a tilting lever, fr". Vhen the ear has gotten entirely upon this second platform, it strikes the upper end of a yielding prop, s2, Figs. 6 and 9, which is pivoted to the platform, and has hitherto held the platform up, removing said prop from its support si", and permitting' the platform to fall to the level of the permanent track. The fall of this platform elevates a third platform, p21, supported upon the other end of the tilting lever r2, and by reason of the inequality of the length of the arms ofthe lever said platform raises an empty car, which has rolled down upon it from the other end of the circular fixed track to the height of theiirst--mentioned platform p2. The said empty car, now moving forward upon platform pdisengages by a projection, zr, the catch which held it down, and platform and carrisc to receive their load from the pump. The rise and fall of this platform works by rod a gate, t', to open and close the discharge tt ol' the pump. Said gate and operV ating devices are shown in Figs. 8 and l0. The loaded car upon leaving the platform p'" passes along the track until the inclined part and nose .ri upon its forward end engages under a banal, Figs. 3, l1, and l2, which is se cured to a hinged cover, a?, of an opening to the drying-chamber, lifting such cover pre paratory to the dumping ofthe load. The rising of the said cover strikes a latch, 102, Fig. l2, releasing the hinged side of the car, and permitting the load to slide down th rough the opening into the drying-chamber. A laterally-inclined rail or bar, b, is fixed heside the track, which, as the car moves on, impinges against the released side of the car and closes itback into its place, the latch dropping again into its place.

Atag, i have shown ajointed rising and falling section of track, which is overbalanced hy the lever and weight .3", whereby it kept normally in a raised position. This section is arranged in the proper relation tolhcopenings and covers nl to effect this result, that when an advancing loaded cur comes upon the raised section its superior weight dcprcsses it and at thc same time the car is stopped. /Vhen this shall have taken place, the nose fr?, bar oi, and latch wl will have acted and the load will be discharged through the opening. The car and section thus lighteued are raised by the overweight, the nose :r2 escapes from the bar el, whose length is adjusted to that result, and the car starts down the in Cline upon its return to the pump. If for any reason it is desired to detain the car upon the section or to keep the section in a depressed position, this may be done by means of a simple catch or button, in, projecting upward from the sill below.

The advantages of my invention are clearly apparent. Cities are enabled to utilize the manurial parts of the sewage. The process clarifies the elliuent which is discharged intoY the river or bay. rlhe odors of the sewers are drawn from the gullies and inlets to the chimney, and with the sewer-gas are discharged into the upper air.

Having thus described my invention, what l claim, and desire to secure by Letters Patent, 1s-

l. The combination, with devices for settling, drying, and reducing the sedimentary matter of sewage, of the sever divided by one or more parallel walls into two or more passages, said passages merging again into the sewer, gates governing the flow ofthe sewage therethrough, and screens for separating intractable matter from the sewage, asset forth.

IOC)

2. The combination, with the sewer, of the l revolving screen b, as set forth.

'3. The screen b, having the dischargingtroughs b5, as set forth.

4l. The series of secto1-formcd settlingtanks, in combination with the central distributing-channcl and the sewer, as set forth.

rJ'She combination of the radially-an ranged settling-tanks, the pier, the radial ducts, and the sludge-ducts o2, as set forth.

G. The combination ot' two or more series of radiallyarranged catclrbasins, duels converging therefrom to the sludge-ducts o?, the latter converging also to a connection with the pump, as set forth.

7. The combination of the radially-arranged settling-tauks,distributiiig-channels from one thereof to all the rest, and the circular eiiluent-drain surrounding` the series as set forth.

S. The efllueut-drain m. provided with two adjacent discharges, and a gate adapted to open one and close the other, as desired, as Set forth.

9. In an apparatus for treating sewage and discharging its eiiluent into tide-water, the combination, with the union uf, the resen voir and its connecting-pipe, and the pipe IIO discharging to the hay, of the gate and ils actuating-float to open one of said pipes and close the other, according` to the stzite of the tide. substantially as set forth.

10. In :in apparatus fortreziting sewage, the combination, with the effluentlmin m, of the water-Wheel, the gearing and shafts connected therewith, the pumps, the mills, and the clutclrpnlley, substantially as set forth.

l1. The combination, With the covering- Hoor provided with openings and covers therefor, of the bars 9"", attached to said covers, the track running,` adjacent to said openings, the Xed inclined bzirs b, and the car having the nose x2 und the hitch 10', substantially as described.

Vi t n esses:

FRED.- E. FIELD, FRANK K. ROGERS. 

